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Accurate AM-FM signal demodulation and separation using nonparametric regularization method

文献类型：期刊论文

作者Hu, Xiyuan1; Peng, Silong2; Guo, Baokui3; Xu, Pengcheng4
刊名SIGNAL PROCESSING
出版日期2021-09-01
卷号186页码:12
ISSN号0165-1684
关键词Nonparametric regularization method AM-FM signal Null space pursuit (NSP) Differential equation Signal demodulation and separation
DOI10.1016/j.sigpro.2021.108131
通讯作者Peng, Silong(silong.peng@ia.ac.cn)
英文摘要In this paper we propose a novel adaptive nonparametric regularization (NPR) method for solving optimization problems with linear constraint. The regular parameter in NPR algorithm is adaptively updated. We prove that the NPR is convergent and provide an early stop method (ESM) with a termination criterion to handle the perturbation problem which is unsolved in other methods such as the augmented Lagrange method (ALM). We then introduce a new differential operator which can absolutely annihilate the amplitude-modulated and frequency-modulated (AM-FM) signals (AM-FM operator, AFO). The proposed operator is a precise operator and thus can obtain a more accurate solution in operator based signal demodulation and separation problems. We apply the NPR algorithm in signal demodulation and separation based on the AFO and propose signal demodulation (NPR-AFOSD) and separation (NPR-AFOSS) algorithms. The experimental results on both synthetic AM-FM signals and the real-life data demonstrate that the proposed demodulation and separation methods are more effective and robust than the state-ofthe-art methods. (C) 2021 Elsevier B.V. All rights reserved.
WOS关键词EMPIRICAL MODE DECOMPOSITION ; SPACE COMPONENT ANALYSIS ; MINIMIZATION ALGORITHM ; FREQUENCY ; OPERATOR ; PURSUIT ; SPEECH
资助项目Natural Science Foundation of China[61571438]
WOS研究方向Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000652606600009
资助机构Natural Science Foundation of China
源URL[http://ir.ia.ac.cn/handle/173211/45223]  
专题自动化研究所_智能制造技术与系统研究中心_多维数据分析团队
通讯作者Peng, Silong
作者单位1.Nanjing Univ Sci & Technol, Sch Comp Sci & Engn, Nanjing 210094, Peoples R China
2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
3.Sogou Inc, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Hu, Xiyuan,Peng, Silong,Guo, Baokui,et al. Accurate AM-FM signal demodulation and separation using nonparametric regularization method[J]. SIGNAL PROCESSING,2021,186:12.
APA Hu, Xiyuan,Peng, Silong,Guo, Baokui,&Xu, Pengcheng.(2021).Accurate AM-FM signal demodulation and separation using nonparametric regularization method.SIGNAL PROCESSING,186,12.
MLA Hu, Xiyuan,et al."Accurate AM-FM signal demodulation and separation using nonparametric regularization method".SIGNAL PROCESSING 186(2021):12.

入库方式： OAI收割

来源：自动化研究所

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